Schist with Quartz Vein
Mica Schist with Crystalline Quartz (SiO2)
metamorphic
Category
Sedimentary (Processed Mineral Product)
Browse sedimentary (processed mineral product) specimens identified by the Rock Identifier community.
Learn about Sedimentary (Processed Mineral Product) in the encyclopedia
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Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2)
metamorphic
Green Aventurine in Host Rock
Quartz (SiO2) with Fuchsite inclusions
mineral
Aura Quartz / Rainbow Aura Quartz
Silicon Dioxide (SiO2) with metallic vapor coating
mineral
Tourmalinated Quartz
Silicon Dioxide (SiO2) with Schorl inclusions (NaFe2+3Al6(BO3)3Si6O18(OH)4)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Quartz (SiO₂ - Silicon Dioxide)
Mineral
Fursuit (Synthetic Fur Specimen)
Canis anthropomorphus syntheticus
Anthropomorphic Textile Construct
Orthoclase Feldspar
K(AlSi3O8)
mineral
Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2)
mineral
Tourmalinated Quartz
Quartz (SiO2) with Schorl (NaFe3Al6(BO3)3Si6O18(OH)4) inclusions
mineral
Quartz
Quartz (SiO2 - Silicon Dioxide)
Mineral
Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2)
mineralological specimen
Aquamarine
Beryl (Be3Al2Si6O18)
mineral
Sunstone (Feldspar)
Plagioclase Feldspar (Na,Ca)(Al,Si)4O8
mineral
Smoky Quartz
Smoky Quartz (Silicon Dioxide - SiO2)
mineral
Paraiba Tourmaline
Elbaite Tourmaline (Na(Li,Al)3Al6(BO3)3Si6O18(OH)4) - Copper-bearing
mineral
Serpentinite
Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4
metamorphic
Quartz (Milky or Druzy Quartz)
Silicon Dioxide (SiO2)
mineral
Milky Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
mineral
Yellow Jasper
Silicon Dioxide (SiO2) with Goethite/Iron Oxide inclusions
sedimentary
Quartz (likely a macrocrystalline variety like milky quartz or smoky quartz, given the appearance in the image)
Quartz (SiO₂ - Silicon Dioxide)
Mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Quartz (Iron-Stained)
Silicon Dioxide (SiO2)
mineral
Quartz (Smoky or Citrine variety)
Silicon Dioxide (SiO2)
mineral
Quartzite
Quartzite (SiO2)
metamorphic
Mahogany Obsidian
Volcanic Glass with Hematite (SiO2 + Fe2O3)
igneous
Granite
Granite (a felsic intrusive igneous rock)
Igneous Rock
Banded Agate (specifically Lake Superior Agate type)
Silicon Dioxide (SiO2) - Microcrystalline Chalcedony
mineral
Azurite
Azurite (Cu3(CO3)2(OH)2)
mineral
Ferrochrome Slag
Anthropogenic slag (Fe-Cr alloy waste)
industrial byproduct
Mixed Gemstone Bracelet
Mixed natural minerals and rocks (e.g., Rhodonite, Malachite, Sodalite, Rose Quartz, Black Tourmaline, Quartz/Chalcedony variants)
Mineral/Rock assemblage
Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2)
metamorphic
Gossan (Iron Hat)
Hydrous Iron Oxides (predominantly Goethite FeO(OH) and Limonite)
mineral
Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2)
mineral
Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2)
mineral
Yellow Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Sandstone Pebble (Quartzite-rich)
Clastic Terrigenous Sedimentary Rock (SiO2 dominant)
sedimentary
Mahogany Obsidian
Volcanic Glass with Hematite or Magnetite (SiO2 + Fe2O3)
igneous
Ironstone Concretion (likely)
Goethite/Hematite/Limonite cemented sediment
Sedimentary Rock
Serpentinite
Serpentinite (composed primarily of Serpentine group minerals like Antigorite, Lizardite, and Chrysotile)
metamorphic
Mica Schist
Mica Schist (predominantly Muscovite or Biotite sheet silicates)
metamorphic